Cadwallon ab Ieuaf

Cadwallon ab Ieuaf (941-987) was Prince of Gwynedd from 985 to 986, succeeding Hywel ab Ieuaf and preceding Maredudd ab Owain.

Biography
Cadwallon ab Ieuaf was the son of Ieuaf ab Idwal, and he succeeded to the throne of Gwynedd after the death of his brother Hywel ab Ieuaf in 985. He reigned for just a year before Maredudd ab Owain of Deheubarth invaded the kingdom and slew Cadwallon in battle.